Tools & Wizards About Us
niu.com screenshot

Report Summary

  • 14

    Performance

    Renders faster than
    26% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 40% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 60

    SEO

    Google-friendlier than
    23% of websites

niu.com

NIU Official Global Website | NIU Smart Electric Scooter

Page Load Speed

6.6 sec in total

First Response

498 ms

Resources Loaded

5.8 sec

Page Rendered

326 ms

niu.com screenshot

About Website

Welcome to niu.com homepage info - get ready to check NIU best content for China right away, or after learning these important things about niu.com

NIU delivers the best electric vehicle in the two-wheel class powered by a Bosch Electric Motor and Panasonic Lithium Battery. Learn more.

Visit niu.com

Key Findings

We analyzed Niu.com page load time and found that the first response time was 498 ms and then it took 6.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

niu.com performance score

14

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value10.8 s

0/100

10%

LCP (Largest Contentful Paint)

Value20.3 s

0/100

25%

SI (Speed Index)

Value24.4 s

0/100

10%

TBT (Total Blocking Time)

Value12,290 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.079

94/100

15%

TTI (Time to Interactive)

Value32.7 s

0/100

10%

Network Requests Diagram

niu.com

498 ms

en

377 ms

mapbox-gl.css

15 ms

TweenMax.min.js

329 ms

ScrollMagic.min.js

275 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 5% of them (2 requests) were addressed to the original Niu.com, 80% (35 requests) were made to S.niucache.com and 9% (4 requests) were made to Img.niucache.com. The less responsive or slowest element that took the longest time to load (2.8 sec) relates to the external source S.niucache.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 145.8 kB (63%)

Content Size

231.6 kB

After Optimization

85.8 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Niu.com main page is 231.6 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. HTML takes 145.0 kB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 129.9 kB

  • Original 145.0 kB
  • After minification 141.3 kB
  • After compression 15.1 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 129.9 kB or 90% of the original size.

Image Optimization

-39%

Potential reduce by 15.9 kB

  • Original 41.1 kB
  • After minification 25.2 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, NIU needs image optimization as it can save up to 15.9 kB or 39% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 14 B

  • Original 45.5 kB
  • After minification 45.5 kB
  • After compression 45.5 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. This website has mostly compressed JavaScripts.

Requests Breakdown

Number of requests can be reduced by 17 (47%)

Requests Now

36

After Optimization

19

  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of NIU. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

niu.com

niu.com

498 ms

en

en

377 ms

mapbox-gl.css

mapbox-gl.css

15 ms

TweenMax.min.js

TweenMax.min.js

329 ms

ScrollMagic.min.js

ScrollMagic.min.js

275 ms

animation.gsap.min.js

animation.gsap.min.js

293 ms

mapbox-gl.js

mapbox-gl.js

7 ms

262e431.css

262e431.css

395 ms

e1a69b45323ecf4e65adaee5ad6ad07a.svg

e1a69b45323ecf4e65adaee5ad6ad07a.svg

262 ms

logo.svg

logo.svg

1183 ms

cf7e21382b803f9240833d9e073a0f31.svg

cf7e21382b803f9240833d9e073a0f31.svg

268 ms

common-footer-logo.svg

common-footer-logo.svg

227 ms

instagram.svg

instagram.svg

1526 ms

instagram-white.svg

instagram-white.svg

227 ms

facebook.svg

facebook.svg

2824 ms

facebook-white.svg

facebook-white.svg

248 ms

youtube.svg

youtube.svg

259 ms

youtube-white.svg

youtube-white.svg

271 ms

linkedin.svg

linkedin.svg

298 ms

linkedin-white.svg

linkedin-white.svg

294 ms

twitter.svg

twitter.svg

369 ms

twitter-white.svg

twitter-white.svg

366 ms

d44f3a07c55efdbd05181d628a0c1c7a.svg

d44f3a07c55efdbd05181d628a0c1c7a.svg

213 ms

dd67c3c6661006641cc47524b748d7fd.svg

dd67c3c6661006641cc47524b748d7fd.svg

211 ms

8a89c46.js

8a89c46.js

368 ms

47495df.js

47495df.js

472 ms

b3cab2d.js

b3cab2d.js

563 ms

79789ed.js

79789ed.js

472 ms

bbc561f.js

bbc561f.js

479 ms

ios-gray.svg

ios-gray.svg

477 ms

ios-white.svg

ios-white.svg

562 ms

ios_new_app.png

ios_new_app.png

637 ms

android-gray.svg

android-gray.svg

638 ms

android-white.svg

android-white.svg

638 ms

and_new_app.png

and_new_app.png

638 ms

design-logo.svg

design-logo.svg

641 ms

css

css

78 ms

global.svg

global.svg

224 ms

DINOffcPro.a220adb.woff

DINOffcPro.a220adb.woff

210 ms

DINOffcPro-Medium.b5395f2.woff

DINOffcPro-Medium.b5395f2.woff

167 ms

niu.60add7c.woff

niu.60add7c.woff

210 ms

DINOffcPro-CondBold.abf77cb.woff

DINOffcPro-CondBold.abf77cb.woff

210 ms

DINOffcPro-Bold.5931de2.woff

DINOffcPro-Bold.5931de2.woff

211 ms

element-icons.313f7da.woff

element-icons.313f7da.woff

210 ms

Accessibility Review

niu.com accessibility score

74

Accessibility Issues

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

High

<object> elements do not have alternate text

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

niu.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

niu.com SEO score

60

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

High

Document doesn't have a valid hreflang

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Niu.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Niu.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

niu.com

Open Graph data is detected on the main page of NIU. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: